Base for a replaceable lighting unit



FIG. 1 is a front perspective view of my ornamental design for a base for a replaceable lighting unit.

FIG. 2 is a rear perspective view thereof.

FIG. 3 is a front elevational view thereof.

FIG. 4 is a rear elevational view thereof.

FIG. 5 is a top plan view thereof.

FIG. 6 is a bottom plan view thereof.

FIG. 7 is a left side elevational view thereof.

FIG. 8 is a right side elevational view thereof; and,

FIG. 9 is a rear, bottom perspective view thereof in a position of use in a replaceable lighting unit.

The structures shown in broken lines in FIGS. 1-9 form no part of the claimed design and are included only to illustrate an environment. 

The ornamental design for a base for a replaceable lighting unit, as shown and described. 